Chassis Air Flow - Cisco ASR 5500 Installation Manual

Chassis Air Flow

Table 5: Environmental Compliance Standards
Type
Acoustic Noise
Airborne Contaminants, Indoor Levels
Airborne Contaminants, Outdoor Levels
Altitude
Earthquake Zone 4
Electromagnetic Compatibility and Electrical Safety
Operational Thermal, Operating Conditions
Operational Thermal, Short-term Conditions
Storage Environments, and Transportation and Handling
Thermal Heat Dissipation
Electromagnetic Compatibility and Electrical Safety
Radiated Emissions (Electric Field)
Electromagnetic Compatibility
Environmental Conditions and Environmental Tests for
Telecommunications Equipment
Chassis Air Flow
Air flow within the ASR 5500 complies with Telcordia recommendations to ensure vertical convection cooling
of the system.
As shown in the figure below, the lower fan trays pull ambient air inward from the front and side intake vents
located near the bottom of the chassis. The air absorbs heat from system components as it passes over them.
The upper fan trays pull heated air up through the chassis and exhaust it through the side and rear exhaust
vents located near the top rear of the chassis.
ASR 5500 Installation Guide
18
Technical Specifications
Standard
Telcordia GR-63 Criterion [128]
Telcordia GR-63 Criterion [125]
Telcordia GR-63 Criteria [126, 127]
Telcordia GR-63 Criteria [74, 76]
Telcordia GR-63 Criteria [110-112, 114, 115, 117,
119]
Telcordia Technologies GR-1089-CORE
Telcordia GR-63 Criteria [72, 73]
Telcordia GR-63 Criteria [72, 73]
Telcordia GR-63 Criteria [69-71, 107-109, 124]
Telcordia GR-63 Criteria [77, 79]
Telcordia Technologies GR-1089-CORE
FCC 47 CFR, PART 15, CLASS A
ETSI EN 300 386 v1.4.1
ESTI EN 300 019, ETSI EN 300 753